Answer:
2020  $11,700
2021  $8,080
2022  $14,040
Explanation:
PBO = Projected benefit Obligation
PA =  Plan Asset
Acc. OCI  = Accumulated OCI Gain /  Loss
Min. Amort loss = Minimum Amortization of Loss
Year : PBO ; PA ; Corridor 10% ; Acc. OCI ;  Min. Amort loss
2019 : $2,340,000 ;  $2,223,000 ;  $234,000
2020 : $2,808,000 ;  $2,925,000 ;  $280,800 ;  $397,800 ; 11,700
2021 :  $3,451,500 ;  $3,042,000 ;  $345,150 ;  $264,350 ; 8,080
2022 :  $4,212,000 ;  $3,510,000 ;  $421,200 ;  $280,800 ; 14,040